In the past few years, bio-functionalized advanced nanomaterials containing magnetic core has been materialized as potential future catalysts in diverse applications. In this connection, we report herein a novel Au nanoparticle immobilized on carboxymethyl lignin (CML) modified Fe3O4 nanoparticles (Fe3O4@CML/Au NPs).The morphology and structural features were assessed following different physicochemical methodologies like Fourier Transformed Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES). The Fe3O4@CML/Au NPs nanocomposite was successfully employed in the efficient reduction of different nitroarenes in aqueous medium. An excellent yield was achieved within very short reaction time. The nanocatalyst was easily magnetically recovered and recycled ten times without any significant loss of catalytic activity.
